linux-kernel - Re: [PATCH v3] arm64: dts: qcom: x1e80100-qcp: Add WiFi/BT pwrseq

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Message-ID: <CAMRc=MeAYTz-z6PK8U9XmEdaxXNT2zN_sc+wybdp6GzxTgksBw@mail.gmail.com>
Date: Thu, 20 Feb 2025 11:28:17 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Stephan Gerhold <stephan.gerhold@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>, 
	Johan Hovold <johan@...nel.org>, Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: Re: [PATCH v3] arm64: dts: qcom: x1e80100-qcp: Add WiFi/BT pwrseq

On Mon, Feb 17, 2025 at 6:55 PM Stephan Gerhold
<stephan.gerhold@...aro.org> wrote:
>
> Add the WiFi/BT nodes for QCP and describe the regulators for the WCN7850
> combo chip using the new power sequencing bindings. All voltages are
> derived from chained fixed regulators controlled using a single GPIO.
>
> The same setup also works for CRD (and likely most of the other X1E80100
> laptops). However, unlike the QCP they use soldered or removable M.2 cards
> supplied by a single 3.3V fixed regulator. The other necessary voltages are
> then derived inside the M.2 card. Describing this properly requires
> new bindings, so this commit only adds QCP for now.
>
> Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
> ---

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>